Experiencing electrical failure - ZR-1 Net Registry Forums

IowaZR-1 · 09-14-2008

Quote:

Originally Posted by Shinto

Without pulling the plenum, will it come out from the side or the front? Trying to plan the route with a minimum amount of disassembly. I noticed the plenum dips downward just ahead of the alternator, but there are a couple of sensors, vacuum lines, and possibly the oil fill cap and filter in the way to the side. The coolant line is in the way in either direction. Gonna be fun...

I just looked at the service manual to refresh how it comes out...it comes out the front....remove negative battery cable...air horn and duct...alternator pulley and fan...and a couple of brackets(upper and lower)...the bolts are different lengths so label them or keep them straight some way...the rear brace...oil pressure sender(may need a special socket for this)... and the battery and regulator connections...good luck!

Shinto · 09-15-2008

Well, I got it apart, but took a slightly different route. Disconnect battery power, oil pressure sender (used a 1-1/16" open end wrench and it fit fine), the air temp sensor on the side of the air horn and whatever sensor that is on the side of the throttle body, the coolant tube alongside the motor, the belt, intake hose, air horn and then the throttle body. Slid right out with room to spare. No need to wrestle with the pulley and fan and make a special tool. The rear support could stay put too (especially since I couldn't get the bolt out of the hole past the front #2 cyl injector). Of course I'll be cutting new gaskets for the throttle body and coolant tube for the next hour or so but... I think I might just get this thing done tonight.

It's a far cry from changing the alternator on my '78 T/A -- that only takes about 3-4 minutes and 2 open end wrenches...

As a side note, did any of you notice there are small coolant passages in the top of the plenum and into the top of the throttle body? Obviously there for smog, but closing these off may net a couple of easy horses...

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

09-15-2008	#2
Shinto Join Date: Oct 2007 Location: Sacramento, CA Posts: 16	Re: Experiencing electrical failure Well, I got it apart, but took a slightly different route. Disconnect battery power, oil pressure sender (used a 1-1/16" open end wrench and it fit fine), the air temp sensor on the side of the air horn and whatever sensor that is on the side of the throttle body, the coolant tube alongside the motor, the belt, intake hose, air horn and then the throttle body. Slid right out with room to spare. No need to wrestle with the pulley and fan and make a special tool. The rear support could stay put too (especially since I couldn't get the bolt out of the hole past the front #2 cyl injector). Of course I'll be cutting new gaskets for the throttle body and coolant tube for the next hour or so but... I think I might just get this thing done tonight. It's a far cry from changing the alternator on my '78 T/A -- that only takes about 3-4 minutes and 2 open end wrenches... As a side note, did any of you notice there are small coolant passages in the top of the plenum and into the top of the throttle body? Obviously there for smog, but closing these off may net a couple of easy horses...